Results 211 to 220 of about 1,096 (259)

Buckling mode localization in rib-stiffened plates with misplaced stiffeners – a finite strip approach

Chaos, Solitons & Fractals, 2000
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Xie, W.-C., Ibrahim, A.
openaire   +1 more source

Stress conditions in plates reinforced by stiffening ribs

Prikladnaya Matematika I Mekhanika, 1969
exaly   +2 more sources

Rib separation in postbuckling stiffened shear panels

Composite Structures, 1998
Abstract With the introduction of postbuckling lightweight composite structures, adhesively bonded joints with thin skins are susceptible to premature failure due to peel induced loading. This paper reports on the findings of a research programme to investigate the local and global responses of postbuckling rib-stiffened panels under shear loads.
A.T. Sheppard, K.H. Leong, D.W. Kelly, J. Raju   +3 more
openaire   +1 more source

Vibrations of Rib-Stiffened Elliptical and Circular Plates

The Journal of the Acoustical Society of America, 1970
This investigation deals with the determination of the fundamental frequency of vibration of simply supported and clamped rib-stiffened plates of elliptical boundary. It is assumed that the stiffeners are closely spaced and that their height is moderate when compared with the thickness of the plate.
Frank W. Desiderati, Patricio A. Laura
openaire   +1 more source

Buckling of Rib-Stiffened Plates: An Asymptotic Approach

SIAM Journal on Applied Mathematics, 1990
A perturbation scheme is developed to study the buckling of rib-stiffened plates. Only “weak” stiffeners are considered. The method of solution is suggested by a slight variation in the standard model and developed, initially, for a simpler problem, the vibration of a string with a bead attached.
William T. Grayhack, Thomas J. Mahar
openaire   +1 more source

Buckling mode localization in rib-stiffened plates with randomly misplaced stiffeners

Computers & Structures, 1998
Summary: We study buckling mode localization in rib-stiffened rectangular plates with randomly misplaced stiffeners. Localization factors, which characterize the average exponential rates of growth or decay of amplitudes of deflection, are determined using the method of transfer matrix.
openaire   +2 more sources

Fabrication and modeling of rib-stiffened thin films

Journal of Micromechanics and Microengineering, 2009
Structures created from thin films using surface micromachining techniques typically have low out-of-plane bending stiffness, making them unsuitable for applications such as high-speed laser scan mirrors. The bending stiffness of a low-pressure chemical vapor deposited (LPCVD) film is altered by adding stiffening ribs to the back of the film.
B Jeffrey Lutzenberger, D L Dickensheets
openaire   +1 more source

Effect of rib bending on Bloch wave structure of a rib-stiffened plate

The Journal of the Acoustical Society of America, 1997
It is well known that flexural vibration on a flat plate stiffened by periodically placed line supports shows stop/passband behavior in frequency, associated with Bloch waves. For a one-dimensional situation, with plate vibration incident normally on the ribs, a simple model in which the ribs exert forces normal to the plate by virtue of their mass ...
openaire   +1 more source

Bonded repairs to rib stiffened wing skins

Composite Structures, 2002
The present paper extends existing design formulae [Int. J. Solid Struct. 17 (1981) 827; J. Compos. Struct. 47 (1999) 737] for composite repairs to cracked metallic skins to include the bonded repair of rib stiffened wing skins. These design formulae are validated by comparison with the results of a series of 3D finite element studies and an ...
R. Jones, B. Whittingham, I.H. Marshall
openaire   +1 more source

Analysis of shells reinforced by massive stiffening ribs

International Applied Mechanics, 2008
The authors present results of the application of a heterogeneous mathematical model for the design of shell with massive stiffening ribs. Numerical results are obtained for a cylindrical shell with stiffening ribs. These results are compared with numerical results established in terms of the mathematical model of elasticity theory and the model of the
Savula, Y. H., Jarmai, K., Mukha, I. S.
openaire   +2 more sources